Questions tagged [modeling]
This tag covers finding models for electrical and electronic components and circuits
281
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Cannot get correct output in PSpice with the Buck Converter PSpice Transient Model from TI
I obtained the LM76005-Q1 transient model from the Texas Instrument website and imported it to PSpice. The website also provides a Design Calculator software, so I basically use it to determine other ...
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Diffusion Current for Non-Linear Charge Carrier Configurations
Diffusion current in a MOSFET device can be calculated using Fick's Law per \$J=-qD\frac{d \rho}{dx}\$. It is often taken that the charge carrier configuration (\$\rho\$) across the MOSFET channel is ...
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Extracting equation/formula of drain current for the circuit model
I have simulated this circuit model in LTspice. Now I want to do an experimental fit for the graph for transient analysis of Id. Can anyone help me solving this circuit for Id? Or give me an ...
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Building SPICE models of optocouplers
Looking through this answer about the 6N137 optocoupler I wonder where one can get all those paramaters like Is, Rs, N, various internal resistances, etc. that are used to simulate the optocoupler. I ...
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How can a power converter small signal model predict transient behaviour during a load step which is a large signal disturbance?
I see small signal model being used to predict the Overshoot/Undershoot of output voltage due to a load step.
How do we justify this approach, since the basic assumption of small signal modelling is ...
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LTspice: weird behavior of simple RC circuit
I try to model a simple RC circuit with input of 2 A DC and I get an out voltage (Vc) of 2 TV. I am not sure what I am doing wrong.
EDIT:
This is for MacOS
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Determining the current carrying capability of a hollow cylinder
How can one analyze, to some approximation, the current-carrying capability of a hollow cylinder with a diameter of 3 inches and a length of 6 inches, made from 100 μm thick copper with a resistance ...
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Electrical modeling of multilayer structure
If I have a construction of layers wherein the topmost layer is conductive, followed by two different insulation materials in between, and a bottom structural layer that is a partially conductive ...
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Battery Pack discharge behaviour
i want to simulate the discharging behaviour of several battery packs/modules connected in series to simulate a discharge machine for a recycling facility. I wanted to simulate possible current/...
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How to learn about memristors as a circuit designer? [closed]
I'm trying to learn about memristors to play with it in circuit design. I think it might be more intuitive to do tests and measurements rather than reading maths formulas. The problem is that I don't ...
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Thermodynamics of a simple electrical conductor
I derived an expression for the time constant of the temperature of an electrical conductor and was looking for some constructive feedback.
Initially there is no current flowing through the conductor ...
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An AC motor is a transformer? How?
motivation:
A guy I worked with years ago (~2015) who is an EE said that "an electric motor was just another form of a transformer". I'm not an EE, so I didn't do things with transformers. ...
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What are techniques to fix/compensate parasitic effects that occur at very high frequencies in passive electronic components on circuit level?
There are of course equivalent circuit models for modeling practical passive components using idealized elementary circuit models that reflect the parasitic effects that occur at high frequencies , ...
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Piezo sensor at resonance - equivalent model
piezo materials are commonly modelled with the BVD model
When the piezo is used as a sensor, they are commonly modelled as a current source in parallel with a capacitor because à external force ...
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Is there a way to take this buck diagram and reduce it to an AC transfer function?
I am semi-dangerous with switchers but I've never really delved into the innards of them so I'd like to ask about this TPS23750 diagram. I would like to develop a model of this feedback loop of a buck ...
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